Belting.



no Menu.

E. MAGALDI. BELTING.

APPLICATION FILED SEPT. 24. 1901.

PATBNTED MAY. 31, 1904.

Patented May 31, 1904} PATENT OrrIcE.

EMILIO MAGALDI, OF PARIS, FRANCE.

BELTING.

SPECIFICATION forming part of Letters Patent N0. 761,519, dated May 31,1904.

Application filed September 24:, 1901. Serial No. 76,381. (No model.)

To all whom, it may concern:

Be it known that I, EMILIO MAGALDI, a subject of the King of Italy, anda resident of Paris, France, have invented Improvements in Belting andthe Like,'of which the following is a full, clear, and exactdescription.

This invention relates to the manufacture of articles of leather or likematerial in which great strength is required with flexibility, and theinvention is particularly applicable to the manufacture of belting.

In the accompanying drawings, Figure 1 shows a part of 'a leather stripto be used in making the belt or like article. Fig. 2 shows the samewith holes punched in it. Fig. 3 is a face view of part of the finishedbelt, and Fig. A is an edge view of the same.

In carrying out my invention I take a leather strip or thong A, Fig.1,'preferably having as great a length as possible; but that is in noway indispensible, because I may use thongs of any length and portionsof cut strips. The thongs are placed together parallel, Fig. 3, and arejoined by metal rods or pins B B, passed through openings previouslyformed in the latter, Fig. 2. The pins B are riveted at b at their ends,so as to strongly compress at those points the whole width of they havebeen made.

the thongs, Figs. 3 and 4:. In general the thongs are placed in such amanner that the faces of the strap or belt are formed by the faces ofthe thongs resulting from the cutting into the sheet of leather by meansof which I thus obtain a builtup strap, such as that shown in Fig. 3,which consists of a series of zones 00, in which the thongs arerelatively free, although bound or pressed together at B. In theselast-mentioned parts the leather thongs are very strongly pressed andform at these parts a mass similarto a-singlebroad belt of leather. Thefurther result of this arrangement is that the thongs between twoconsecutive pins B are slightly bulged out and incurved, particularly inthe case of the outer thongs, as clearly seen in Fig. 3. Such a built-upstrap or belt is very flexible, because it' is to a certain extentsimilar to a leather belt or chain composed of links, (known asleather-link belting,) the thongs being free and retaining their naturalflexibility in the zones :2, but having at the same time the qualitiesof great strength, because the parts about the pins or rods B are solidand comparatively inflexible. The strap orbelt is similar as regardsflexibility to a solid strap in which longitudinal slits or incisionsmight have been made, but with much superior qualities, because suchastrap would i tend to be torn, while mine is composed of parallelelements the breakage of any one of which is without effect upon theothers. Again, built-up belts according to this invention when theystretch at the time of starting do not become weakened. An ordinarystrap tends, in effect, to become thinner or narrower, and therefore tobe less strong at one or more parts, since a strap cut from a sheet ofleather is never of equal thickness and quality throughout. When my beltis subject to a tractive strain, it does not diminish in thickness; butby reason of the curve and bulge of the thongs between two successivepins B the distance between the pinsincreases and returns to itsoriginal dimension when the "force of traction ceases.

-It is to be noted that the strap or belt is not weakened about the rodsB, because, as has been stated, the perforations intended to allow theinsertion of these rods are not punched out or cut, but are simplyopened by means of a pointed punch, so that the pins B are engaged inopening and forcing aside the surrounding leather.

most varied parts of leather, for the thongs work individually onlybetween the rods B, and at the position of these latter they arerendered solid by the very great'pressure with which they .have beenforced or bound against one another. I can thusconstruct the strap orbelt by distributing over its width the weakest thongs. When it isdesired to join two thongs, I effect this at the place ofarod, as shownin Fig. 3, by cutting the ends of the thongs in sloping fashion orscarfed.

I claim as my invention' As a new article of manufacture, homogeneousbelting composed of thongs of leather ter and free from pressure andretaining there I the natural flexibility of the material.

In testimony whereof I have signed my name to this specification in thepresence of two su bscribing witnesses.

EMILIO MAG-ALDI.

Witnesses:

GUsTAvE DUMONT, EDWARD P. MAoLnAN.

